Improvement in pitman connections for harvesters



Turns J ETE PATENT UFFICE HIRAM HOWE, OF HOUSTON, MINNESOTA.

Specification forming part of Letters Patent No. 127 240, dated May 28,1872.

Specification describing a new and useful Improvement in PitmanConnection for Han vesters, &c., invented by HIRAM HOWE, of Houston, inthe county of Houston and State of Minnesota.

Figure 1 is a top view of my improved connection. Fig. 2 is a side viewof the same.

Similar letters of reference indicate corresponding parts. Y

My invention has for its object to furnish an improved device forconnecting the pitman to the cutter bars of harvesters and mowers, whichshall be so constructed as to almost entirely prevent friction and wear,and which, should there be any wear, will allow it to be readily takenup; and it consists in the construction and combination of the variousparts of the device, as hereinafter more fully described.

A is a bar or arm, which is designed to be bolted, riveted, welded, orotherwise securely attached tothe inner end of the cutter-bar of aharvester or mower. Upon the end of the arm A is formed lugs or gudgeonsal, having knife-edges formed upon their outer sides to rest against theinner surfaces of the eyes of the eyebolts B. In the middle part of theend of the arm A is formed a notch, a2, the bottom of which is beveledoft' upon its side edges to reduce it to a blunt or rounded edge ,whichrests against the end of thel arm C,which may be the end of the pitmanor cfa short bar or arm to be bolted, riveted, welded or otherwisesecurely attached to said pitman, which end may have a slight notch orgroove formed in it to receive the edge of the bottom of the notch a2.Upon the bar or arm C, at a short distance from its end, is formed acrossbar, iD, having holes formed through its ends to receive theeyebolts B, which are secured to it by nuts screwed upon theirprojecting ends. Lock-nuts may be used,if desired. The device isdesigned to be made of steel or of iron case-hardened to preventfriction and wear.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The improved connection, formed by the combinationl of the arm A a1 a2,eyebolts B, arm C, and cross-bar D with each other, said parts beingconstructed substantially as here in shown and described, and for thepurpose set forth.

HIRAM HOWE. Witnesses:

Enw. A. HORNER, JOHN OOTTRELL.

